50.a.SolvethefollowingproblemgraphicallyminimizeandmaximiseZ=3x
+9ysubjecttoConstraints:x+3y≤60
x+y≥10
x≤y
x≥0,y≥0
b.Findthevalueofk,
ifthefunctionf(x)={kx+1,ifx≤5
3x-5,ifx>5
atx=5isacontinuousfunction.
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Answer:
sorry it's upper level
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